# Model collapse mitigation? (lost over $500 on this call)

**URL:** <https://community.retellai.com/t/model-collapse-mitigation-lost-over-500-on-this-call/3491>\
**Category:** Support Help\
**Tags:** bug\
**Created:** [August 11, 2026, 4:00pm UTC](https://community.retellai.com/t/model-collapse-mitigation-lost-over-500-on-this-call/3491 "2026-08-11T16:00:02Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![a11](https://yyz2.discourse-cdn.com/flex008/user_avatar/community.retellai.com/a11/32/2487_2.png) [@a11](https://community.retellai.com/u/a11)\
**Post date:** [August 11, 2026, 4:00pm UTC](https://community.retellai.com/t/model-collapse-mitigation-lost-over-500-on-this-call/3491/1 "2026-08-11T16:00:02Z")

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Gemini 3.5 flash on a single-prompt agent. The user got confused and started interrupting the agent with “hello?” type inputs. The model then raced and streamed “Hello” 50x in a single message after which the user had to hang up.

Please share stats on LLM collapse for commonly used models and which models you recommend for a balance of speed (TTFT with lowest variance), instruction following, and cost.

While i understand, model collapse and similar failures are inevitable, this unfortunate turn of events cost our business over $500 in lost revenue and potential further complications. I’m seeking advice backed by stats to minimize the likelihood of such events in the future.

call: call\_9a5a7cf8b3172f1db69e73f06e0

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**Author:** ![Shah-Fazal](https://yyz2.discourse-cdn.com/flex008/user_avatar/community.retellai.com/shah-fazal/32/2522_2.png) [@Shah-Fazal](https://community.retellai.com/u/Shah-Fazal)\
**Post date:** [August 11, 2026, 4:08pm UTC](https://community.retellai.com/t/model-collapse-mitigation-lost-over-500-on-this-call/3491/2 "2026-08-11T16:08:29Z")

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Hi @a11 I’ve informed our team about this and will get back to you as soon as I have an update.

Thank You

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<div class="post-metadata">

**Author:** ![Shah-Fazal](https://yyz2.discourse-cdn.com/flex008/user_avatar/community.retellai.com/shah-fazal/32/2522_2.png) [@Shah-Fazal](https://community.retellai.com/u/Shah-Fazal)\
**Post date:** [August 11, 2026, 6:21pm UTC](https://community.retellai.com/t/model-collapse-mitigation-lost-over-500-on-this-call/3491/3 "2026-08-11T18:21:50Z")

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Hello @a11 What you described is consistent with an LLM degeneration / interruption-loop failure mode. This seems to be a gemini-3.5 model issue. The safest default recommendation from what we’ve seen is to move this workflow to `gpt-4.1`.

Thank You